SU-1 Barometric Pressure Sensor for VX7R/VX6E/VX5R/VXA210.
The optional Yaesu SU-1 barometric module provides both barometric pressure and altitude measuring capability, perfect for recreational use such as hiking or mountain climbing. (Not meant for navigation or personal safety applications). The VX-6R may even be programmed to monitor pressure and temperature or temperature and altitude while it is turned off! This user-installed accessory mounts under the battery compartment.